7851389

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{239}}^1$

素因数の和:297

約数の個数: 24

約数和(自身を含む): 10241280

約数和(自身を除く): 2389891

約数列:

[1, 7, 13, 19, 91, 133, 239, 247, 361, 1673, 1729, 2527, 3107, 4541, 4693, 21749, 31787, 32851, 59033, 86279, 413231, 603953, 1121627, 7851389]

約数ペア:

[(1, 7851389), (7, 1121627), (13, 603953), (19, 413231), (91, 86279), (133, 59033), (239, 32851), (247, 31787), (361, 21749), (1673, 4693), (1729, 4541), (2527, 3107)]